Economizer



Feb. 18, 1930.- D. s. JACOBUS ECONOMIZER Filed May 4, 1925 NEGR- ATTORNEYS Patented Feb. 18, 1930 UNITED STATES PATENT OFFICE f DAVID S. JACOBU'S, OF JERSEY CITY, NEW JERSEY, ASSIGNOR THE BABCOOK & WIL- COX COMPANY, OF BAYONNE, NEW JERSEY, A CORPORATION OF NEW JERSEY EGONOMIZER Application filed May 4,

My present invention relates to steam boiler economizers and particularly to the type in which tubes may be replaced readily.

My invention will be best understood from the following description and the annexed drawings of an illustrative embodiment of my invention in which Fig. 1 is a side view of a part of an economizer in which the tubes extend across the gas flue and are connected to-headers at either end and at opposite sides of the flue; Fig. 2 is a view of Fig. 1 looking from the bottom of that F igure; Fig. 3 is a section on line 33 of Fig. 1, with the supporting plate omitted; Fig. 4 is a section on line 4-4 of Fig. 1, and Fig.

5 is a view of a part of the side view of the economizer, showing a modification.

Like reference characters indicate like parts throughout the drawings.

In the illustrative embodiment, the tubes extend across a gas pass and are arranged in .rows, with the tubes in successive rows in staggered relation. Headers 11 are single I I long boxes to which each tube of a row is connected. Headers 12 are relatively small boxes to which, in the illustrative embodiment, two tubes of each of two adj acent rows are connected, the headers 12 being arranged as shown best in Fig. 3. Elliptical handholes are provided in each header 11 and 12 by which each of a group of four tubes may be cleaned through a single handhole, the headers being made deep enough to e'r-- mitthis. The outlines of the handholes are shown in dotted lines in Figs. 8 and 4. While they can be made large enough to permit the cleaning of the tubes, a tube cannot be removed through them unless the tube can be turned ata considerable angle, which cannot always be done. The handholes are covered by the usual handhole fittings 13.

Vertical plates 14, 14 suspended from above in any suitable manner, support tubes 10, being located adjacent the headers. Openings 15 in plates 14 surround the tubes 10, the openings being considerably larger than the outside diameter of the tubes and the tubes contacting with the lower walls of the holes and supported thereby.

If a tube 10 is to be removed, the ends of 1925. Serial No. 27,637.

serted. The header 12 will then be replaced and the tubeends expanded into it. The

tube to be removed may be drawn straight out through the space provided by the removal,

of the header 12, or, in event there is not room enough outside the economizer for this,

then it may be removed by angling it out through the side of the economizer, the holes 15 being made large enough to permit thisangling. The plates 14 serve to hold the tubes 10 in proper relation while the header 12 is removed. i

.By making the one setof headers in small sections,it is obvious' that a tube may be removed and replaced with very little difficulty since only a small header need be removed.

Ifthe exteriors of the economizer tubes are to be washed with water, the spaces b etween the plates 14 and the headers may be filled with a waterproof material, as indicated at 16 in Fig. 5, such material preventing the water flowing through the openings 15.

The arrangement which I have shown is merely illustrative and the embodiment of my invention may be widely varied.

' I claim:

1. In a device of the class described, oppositely disposed headers connected by a plurality. of tubes, and perforated plates disposed between the headers with the tubes passing through the perforations, whereby the plates support the tubes and headers, said perforations being substantially larger than the tubes supported therein and the tubes supported by the'lower walls of the holes for thepurpose'set forth.

2. In a device of the class described, a plurality of groups of tubes, a continuous header connecting the tubes at one end thereof, and a plurality of relatively short headers disrality of groups of tubes, a continuous header connecting the tubes at one end thereof, a

plates disposed between the continuous headers and the plurality of short headers with the tubes passing through said perforations andsupported by the Walls of said perforations, whereby the plates support the tubes and headers.

4. In a device of the class described, oppositely disposed headers connected by a plurality of tubes, plates disposed between the headers and adjacent to the respective header's, said plates having perforations therethrough in which the tubes are disposed, and waterproof material disposed between each plate and the adjacent header;

5. In a device of the class described, a plurality of tubes extending across a gas pass, connections between the ends of certain tubes on at least one side of said pass, and a plate disposed adjacent said connections and having perforations substantially larger than said tubes, said tubes passing through said perforations and supported by the Walls thereof.-

6. In a device of the class described, a plurality of tubes extending across a gaspass, connections between the ends of certain tubeson at least one side of said pass, a plate disposed adjacent said connections and hav ingperforations through which the tubes pass, and Water proof material disposed between said plate and said connections and surrounding said tubes.

' DAVID S. JACOBUS.

CERTIFICATE or CORRECTION.

Patent No. 1,747,671. Granted February 18, 1930, to

DAVID s. JAGOBUS.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as ioilows: Page 1, lines 88 and 89, claim 1, strike out the words and comma "whereby the plates support the tubes and headers,"; and that the said Letters Patent shouid be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 18th day of March, A. D. 1930.

M. J. Moore, (Seai) Acting Commissioner of Patents. 

